It's estimated that a stay-at-home mom works about 100 hours a week. Of course, women that work outside of the home then they do the whole "mother thing" at home are working a LOT of hours.

So a mother's base salary would break down to $37,022. In the grand scheme of things, that is not a lot of money. However, if we factor in the overtime she would earn an extra $75,941. So the yearly take home goes up to $115,432 per year.

... That still doesn't seem like much for all the different hats she wears and all those hours that she puts in.